5 Written Questions
5 Matching Questions
- Neritic Zone
- Abyssal Zone
- Sublittoral Zone
- Pelagic Zone
- a The area of the pelagic zone above the continental shelves. Has abundant sunlight, moderate temperatures, and relatively low water pressure.
- b The shallow benthic zone that most organisms live in; located on the continental shelves and is populated by organisms such as sea stars, brittle stars, and sea lilies.
- c Has no sunlight because it begins at a depth of 4,000 meters and extends to a depth of 6,000 meters.
organisms that live there: sponges and worms
- d The mass of mostly microscopic organisms that float or drift freely in the waters of aquatic (freshwater and marine) environments.
- e The region of an ocean or body of fresh water above the benthic zone.
5 Multiple Choice Questions
- A floating layer of sea ice that completely covers an area of the ocean surface.
- The shallowest benthic zone that lies between the low-tide and high-tide lines.
- Elements that exist in very small amounts.
ex: gold, zinc, and phosphorus.
- The ratio of the mass of a substance to the volume of the substance; commonly expressed as grams per cubic centimeter for solids and liquids and as grams per liter for gases.
- A popular method for desalinating ocean water. It includes the use of special membranes that allow water under high pressure to pass through and that block the dissolved salts.
5 True/False Questions
Salinity → The ratio of the mass of a substance to the volume of the substance; commonly expressed as grams per cubic centimeter for solids and liquids and as grams per liter for gases.
Nekton → All organisms that swim actively in open water, independent of currents
Freezing → The movement of deep, cold, and nutrient-rich water to the surface.
Phytoplankton → Microscopic plants in the ocean that provide food to many of the ocean's organisms.
Desalination → A method of desalination where ocean water is heated to remove salt. Heat causes liquid water to evaporate and leave dissolved salts behind. When the water vapor condenses, the result is pure fresh water.